^ Just keep hammering. I got in in July. One thing you may want to do, if you can do it in good conscience, is to state that if admitted, you will absolutely attend, and withdraw from all other schools. They like to hear that.

You said you want to do a joint degree correct? Why not start working on that degree now, I think that will show commitment to your plan and combined with a new LSAT (maybe ask them to not make a decision until after the test) should help.